ABC Inc. has the manufacturing capacity to produce either cotton socks or wool socks, but not both. The company needs to choose between the two types of socks: cotton socks (each pair) has a unit variable cost of $2 and unit fixed cost of $1.5, and wool socks (each pair has a unit variable cost of $8 and unit fixed cost of $3.5. ABC is planning to sell cotton socks at $5 per pair and wool socks at $13 per pair. The unit costs are estimated at a productivity level of 1,000 pairs of socks each month. Required: 1. At what productivity level is ABC indifferent between producing cotton and wool socks? 2. ABC plans to produce and sell 2,000